I got this in my e-mail, courtesy of
www.ladyhawke.com and it was too funny and appropriate to pass up:
"Self Taught"
Two guys were out walking their dogs, when
one dog wanders off to pee against the wall.
Like dogs do, it raised it's leg and started
to do his thing.
The second dog then goes up and starts to
go exactly where the other dog did. But
instead of raising his leg, he stood up on
his hind legs, put both paws on the wall
and relieved himself.
One guy says to the other, "Wow, how did
you teach him to pee like that?"
The second man replies, "I didn't teach him.
He's done it ever since the wall fell on him."